/* color palette from <https://github.com/vuejs/theme> */
:root {
  --vt-c-white: #ffffff;
  --vt-c-white-soft: #f8f8f8;
  --vt-c-white-mute: #f2f2f2;

  --vt-c-black: #181818;
  --vt-c-black-soft: #222222;
  --vt-c-black-mute: #282828;

  --vt-c-indigo: #2c3e50;

  --vt-c-divider-light-1: rgba(60, 60, 60, 0.29);
  --vt-c-divider-light-2: rgba(60, 60, 60, 0.12);
  --vt-c-divider-dark-1: rgba(84, 84, 84, 0.65);
  --vt-c-divider-dark-2: rgba(84, 84, 84, 0.48);

  --vt-c-text-light-1: var(--vt-c-indigo);
  --vt-c-text-light-2: rgba(60, 60, 60, 0.66);
  --vt-c-text-dark-1: var(--vt-c-white);
  --vt-c-text-dark-2: rgba(235, 235, 235, 0.64);
}

/* semantic color variables for this project */
:root {
  --color-background: var(--vt-c-white);
  --color-background-soft: var(--vt-c-white-soft);
  --color-background-mute: var(--vt-c-white-mute);

  --color-border: var(--vt-c-divider-light-2);
  --color-border-hover: var(--vt-c-divider-light-1);

  --color-heading: var(--vt-c-text-light-1);
  --color-text: var(--vt-c-text-light-1);

  --section-gap: 160px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background: var(--vt-c-black);
    --color-background-soft: var(--vt-c-black-soft);
    --color-background-mute: var(--vt-c-black-mute);

    --color-border: var(--vt-c-divider-dark-2);
    --color-border-hover: var(--vt-c-divider-dark-1);

    --color-heading: var(--vt-c-text-dark-1);
    --color-text: var(--vt-c-text-dark-2);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  font-weight: normal;
}

* {
  padding: 0px;
  margin: 0px;
  text-align: left;
  font-family: Arial, Verdana, Tahoma, "宋体", Helvetica, sans-serif;
  line-height: 150%;

  box-sizing: border-box;
}

body {
  min-height: 100vh;
  color: var(--color-text);
  background: var(--color-background);
  transition:
    color 0.5s,
    background-color 0.5s;
  line-height: 1.6;
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    Oxygen,
    Ubuntu,
    Cantarell,
    'Fira Sans',
    'Droid Sans',
    'Helvetica Neue',
    sans-serif;
  font-size: 15rem;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  display: flex;
}

img {
  border: none;
}

/*css定义超链接四个状态也有顺序的。*/
a:link,
a:visited {
  text-decoration: none;
}

a:hover,
a:active {
  text-decoration: none;
  border: none;
}

/*以上语句分别定义了"链接、已访问过的链接、鼠标停在上方时、点下鼠标时"的样式。
注意，必须按以上顺序写，否则显示可能和你预想的不一样。记住它们的顺序是“LVHA”。*/
ul {
  clear: both;
  overflow: hidden;
}

ul,
li {
  list-style: none;
}

/*文字，超出隐藏*/
.text-overflow-hidden {
  white-space: nowrap;
  word-spacing: normal;
  letter-spacing: normal;
  overflow: hidden;
}

.ccyc1 {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ccyc2 {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.ccyc3 {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.w-fixed-center {
  width: 1400rem;
  margin: 0 auto;
}

.img100 {
  width: 100%;
  height: 100%;
}

.p_title_before {
  height: 25rem;
  display: flex;
  align-self: center;
  font-weight: bold;
  font-size: 18rem;
  color: #333333;
  border-left: 4rem solid #DC3A2E;
  padding-left: 10rem;
}

.pc {
  display: block;
}

.mobile {
  display: none;
}

@media screen and (max-width: 800px) {
  .pc {
    display: none;
  }

  .mobile {
    display: block;
  }

  .w-fixed-center {
    width: 325rem;
    margin: 0 auto;
  }

  .p_title_before {
    border-left: none;
    padding-left: 0;
    height: 22rem;
    line-height: 22rem;
    font-size: 16rem;
  }
}